Heres the story. Had a friend go to turn on her computer, and as she was hitting the power button, she claims to have been shocked by static electricity.

Pushing in the power button seems to send power to the computer, mobo gets power, computer sounds like it boots up, even the temp dial in the front glows and appears to be fine.... however, nothing ever displays on the monitor.

So far, what I have done is checked that the monitor is fine, so it has to be something with the computer.

I have replaced the motherboard, RAM, and videocard (because I don't know whats wrong) and the same thing still occurs. Powerup but nothing on the screen.

My only guess now is that it is the power supply. Which isn't too hard to replace, but just wondering what else I can do to check whats working and whats not working.

its highly unlikely the cpu , mobos have protection circuits that prevents the cpu from getting fried ,even if the psu fries everything else usally the cpu survives

resetting the cmos might do the trick 2 ways (if #1 didnt work then try #2)
1) with the jumper , theres a jumper near the battery while the pc is powered off put it to pins 2-3 for about 10 seconds (or pins 1-2 if its alredy on 2-3,its not same on every mobo) and then put it back the way it was and power up

2) disconnect the power cord from the psu and get the battery out for 30 minutes then put it back (back exactly the way it was,DO NOT put it on the other side) then connect the power cord and power up

eitherway if it will work get into the bios and load optimized/performance/setup defaults , save & exit

yes that is a possible symptom of a motherboard shorting against a case but it is hard to tell because obviously the symptoms of something thats shorting out can be erratic. i have seen issues like this that come down to a shorting motherboard before, also quite a lot involving front usb ports

Originally posted by jeremy its highly unlikely the cpu , mobos have protection circuits that prevents the cpu from getting fried ,even if the psu fries everything else usally the cpu survives

resetting the cmos might do the trick 2 ways (if #1 didnt work then try #2)
1) with the jumper , theres a jumper near the battery while the pc is powered off put it to pins 2-3 for about 10 seconds (or pins 1-2 if its alredy on 2-3,its not same on every mobo) and then put it back the way it was and power up

2) disconnect the power cord from the psu and get the battery out for 30 minutes then put it back (back exactly the way it was,DO NOT put it on the other side) then connect the power cord and power up

eitherway if it will work get into the bios and load optimized/performance/setup defaults , save & exit